Roof and floor construction



.Oct. 3, 1939. E. c. HOGE 2,174,581

ROOF AND FLGOR CONSTRUCTION Filed Nov. 4, 1957 wimzmwmmmmmw 1.\'\'ENTOR.

Bow/ma CLYDE H0615.

ATTORNEYaS.

Patented Oct. 3, 1939 ROOF AND FLOOR CONSTRUCTION Edward Clyde Hoge,Cincinnati, Ohio, assignor to Lathrop-Hoge Gypsum Construction Company,Cincinnati, Ohio, a partnership composed of Jay C. Lathrop and EdwardClyde Hoge Application November 4, 1937, Serial No. 172,830

7 Claims.

My invention relates .to the .construction of roofs and floors forbuildings of a monolithic character.

Modern construction and design call for roof 5 and floor constructionswhich are more and more resistant to heat loss, but which, at the sametime, may be constructed relatively inexpensively. This has become quitea problem in monolithic buildings, wherein inflammable materials due tofire hazards must be greatly minimized, and where the building must bepleasing of appearance as well as permanent.

It is an object of my invention to provide a roof. or floor constructionwhich has a decidedly high insulating value, and which, at the sametime, is fireproof, vermin-proof, and permanent.

These and other objects of my invention, which will be set forthhereinafter, or will be apparent to one skilled in the art upon readingthese specifications, I accomplish by that certain construction andarrangement of. parts, of which I shall now describe a preferredembodiment. Reference is now made to the drawing, which forms a parthereof and in which- Figure 1 is a cross section of a floor or a roofembodying my invention.

Figure 2 is a section taken on the section line 2-2 of Figure 1.

Figure 3 is a section of a modification of my invention.

There is a system of floor and roof construction known as the Hogesystem, which has been in vogue for many years, and which is describedin my patent issued August 14, 1923, bearing No. 1,464,711. In thisconstruction, a series of bars or rails are laid in interspaced relationwith composition board on the extending flanges of the rails in order toform a complete surface. Reinforcing material is then laid across thetops of the rails, permitting a sag between the rail tops, and slabmaterial such as gypsum is poured over the whole to fill in the spacesbetween the rails and to cover the reinforcing material. Thisconstruction, while being highly beneficial, does not 45 have theinsulation value necessary in modern construction, in that the metal ofthe rails being a relatively good conductor, in cold weather is apt tobecome quite cold due to the fact that the rail tops are relativelyclose to the surface. This, of course, in some cases tends to condensemoisture on the bottom part or underside of the flanges when thetemperature of the room is relatively high and humid. It has also beenmy observation that the composition board of the under surface, is notas highly insulating as at present desired, and if the compositionboards resting upon the flanges are formed of insulation material inorder to increase the insulation of the floor as a whole, the moisturefrom the slab when it is poured, has a tendency to per- 5 meate theinsulation board and discolor it.

Briefly, in the practice, of my invention, I provide interspaced bars I,having base flanges 2. Resting on these base flanges and forming apermanent under surface, I provide composition boards 3. Thesecomposition boards may be the well-known plaster board, or may be boardshaving sound-absorbent and/or heat insulating qualities such as thefibrous air-celled boards, similar to Ce1otex and well known in thein--- dustry. In this construction, my composition boards straddle theprojecting flanges 2 of adjacent rails, and I find it desirable, but notnecessary, to place a strip or a T-strip 4 between the adjacent andabutting edges of the succeeding; boards 3, in order to give a pleasingpaneled appearance from below.

Resting on the composition boards 3 and between the upstanding web 5 ofthe bars, I place moisture-resistant insulating pads 6, composed Mmineral fiber or the like. There is a silica fiber and a moisture-proofrock fiber, both of which I have found quite satisfactory. I do notintend, however, to limit myself to the specific insulating material,since any highly insulating material such as mineral wool made fromrock, slag, glass, or similar material, and which will fill the spacebetween the under surface board 2 and the top level of the bars I, oreven thicker if desirable, answer my purpose. It is a very importantfea-; ture of my invention that this space be completely filled with thepads or batting of insulating material completely to the top edge of.the bars or beyond. The fact that this space is completely filled willcut down any substantial air space which would further the breathing ofthe structure through the cracks, where the boards 3 abut or where theboard edges lie on the flanges 2 of the bars. Thus, condensation withinthe structure will not readily take place.

Metal reinforcing material I is laid transversely over the bars 5 andthe top slab 8 is poured so that the reinforcing material I will becontained therein. This top slab may be formed of gypsum, plaster, orany one of the lighter concretes, such as the ones which containexfoliated vermiculite,

' or any of the gaseous lighter concretes. I do not intend to limitmyself necessarily to the material of the slab 8 or to a single pouredslab, since I have found it satisfactory to use a preformed slab with aminimum size which will permit the straddling of tWo adjacent rails. Itis, however, necessary that this slab 8, whether of. pre-cast slabs, orof a single poured slab, must contain reinforcing material extendingtransversely of the cross bar, so as to strengthen the same.

The above structure is such that some moisture may get down into themineral fiber insulating pads or batting 6, but there is no weightresting and exerting a pressure on this insulating material 6, in orderto consolidate it and ruin its beneficial features, and as noted, therewill be a minimum of breathing space to set up moisture condensation.

In this construction, the entire structural slab is over and above therails I, and the rails are thereby thoroughly insulatedfrom the outsidetemperature, which prevents them from con ducting temperaturedifferentiations through the structure. Due to this construction, thetotal load of the slab 8 and the reinforcing material 1 is carrieddirectly on the bars I, so. there is no pressing upon and consolidatingof the insulating material 6.

The above described construction forms a roof or a floor which iscompletely fire and verminproof, and which has a high degree ofresistance to heat loss, as well as permanency of construction andrelative cheapness. I do not necessarily have to use cross bars in theform of a rail, or a T, since it is possible to use H-sections. However,it is necessary that my bars I have base flanges as is clearly apparent.

When pouring certain material for my slab 8, it may be beneficial toplace a layer of felted paper or composition board 9 on top of theinsulating material 6 and the rails, so that when the material of theslab is poured, it will bind to the felted paper or composition board.It may also be beneficial to water-proof either this layer and/or theunder surface boards 3 by saturation or coating with some material wellknown in the art and the above is understood to be included in thecontemplation of my invention.

It is to be understood that different forms of my preferred form may bemade without departing from the spirit of my invention.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A roof or floor structure for buildings comprising metal cross barshaving base flanges laid in interspaced relation, composition boardssupported on the flanges of the cross bars to form a permanent undersurface, insulating material completely filling the spaces between thecross bars and supported by said under surface, a metal reinforcementextending transversely of the cross bars and located above the same, anda consolidated body extending above and supported on the cross bars andcontaining the metal reinforcement, for the purpose described.

2. A roof or floor structure for buildings comprising metal cross barshaving base flanges laid in interspaced relation, composition boardssupported on the flanges of the cross bars to form a permanent undersurface, insulating material completely filling the spaces between thecross bars and supported by said under surface, a metal reinforcementextending transversely of the cross bars and located above the same, anda consolidated body extending above and supported on the cross bars andcontaining the metal reinforcement, said consolidated body comprisinggypsum plaster, for the purpose described.

3. A roof or floor structure for buildings comprising metal cross barshaving base flanges laid in interspaced relation, composition boardssupported on the flanges of the cross bars to form a permanent undersurface, insulating material completely filling the spaces between thecross bars and supported by said under surface, a metal reinforcementextending transversely of the cross bars and located above the same, anda consolidated body extending above and supported on the cross bars andcontaining the metal reinforcement, said consolidated body comprisinglight concrete, for the purpose described.

4. A roof or floor structure for buildings com prising metal cross barshaving base flanges laid in interspaced relation, composition boardssupported on the flanges of the cross bars to form a permanent undersurface, insulating material completely filling the spaces between thecross bars and supported by said under surface, a metal reinforcementextending transversely of the cross bars and located above the same, anda poured unitary slab extending above and supported on the cross barsand containing the metal reinforcement, for the purpose described.

5. A roof or floor structure for buildings comprising metal cross. barshaving base flanges laid in interspaced relation, composition boardssupported on the flanges of the cross bars to form a permanent undersurface, insulating material completely filling the spaces between thecross bars and. supported by said under surface, a metal reinforcementextending transversely of the cross bars and located above the same, anda poured unitary slab extending above and supported on the cross barsand containing the metal reinforcement, said slab consisting of gypsumplaster, for the purpose described.

6. A roof or floor structure for buildings comprising metal cross barshaving base flanges laid in interspaced relation, composition boardssupported on the flanges of the cross bars to form a permanent undersurface, insulating material completely filling the spaces between thecross bars and supported by said under surface, a metal reinforcementextending transversely of the cross bars and located above the same, anda poured unitary slab extending above and supported on the cross barsand containing the metal reinforcement, said slab consisting of lightconcrete, for the purpose described.

'7. A roof or floor structure for buildings coinprising metal cross barshaving base flanges laid in interspaced relation, composition boardssupported on the flanges of the cross bars to form a permanent undersurface, insulating material completely filling the spaces between thecross bars and supported by said under surface, a layer of felted paperpositioned over and covering said insulating material, a metalreinforcement extending transversely of the cross bars and located abovethe same, and a consolidated body extending above and supported on thecross bars and containing the metal reinforcement, for the purposedescribed.

EDWARD CLYDE. HOGE.

